Machine for breaking and screening coal



N UNITED 'sri-iras rarnnronmon. f

l HOPKIN THOMAS, OF BEAVER MEADOW, PENNSYLVANIA.

MACHINE FOR BREAKING AND SCREENING COAL.

Specification of Letters Patent No. 3,368, dated December 5, 1843.

To all whom it may` concern:

Be it known that I, HorkIN Beaver Meadow, in the county of Carbon andState of Pennsylvania, have invented a new and useful Machine forBreaking Anthracite andBit-uminous Coal into the Various Sizes Requiredfor Domestic and other Purposes; and I `do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the annexed drawing of the same, making part of this specification. y

The nature of my invention consists in using one o-r more iron rollers,of any given dimensions and `weights sufficient to crush the coal, incombination with a grated platform-said roller or rollers beingconnected by means of an iron yoke and rod, to steam engine or any othersuitable moving power, which will give it or them a reciprocating motionover an iron grated platform, through which the coal is forced by theweightofthe roller or rollers. Also in combining the aforesaid breakingmachine with an elevator o-r carrier, to convey the coal to the breakingmachine, and the combination of the breaking machine, with a revolvingscreen and chute or conductors, to convey the coal to any mode oftransportation.

To enable others skilled, in the arts to make and use my invention, Iwill proceed to describe its construction and operation.

I construct my rollers A, A, from cast or wrought iron or other suitablematerial with the periphery fluted, except a portion at each end, whichI leave smooth to ro-ll on the wrought iron bars or rails B, B, through`the center of whichroller, I place a shaft C, which connects to themoving power, by

means of a yoke D, made of wrought iron with bearings constructed in 1any of the known forms. lVhen I use two or more rollers, for the purposeof breaking large lumps of coal, I construct my yoke D, with a joint Eor with guides to the bearings that each roller may rise and fall withfreedom, the

forward roller breaking up the lumps, the latter forcing them throughthe grated platform F. I place an iron guide G, at each THOMAS, of

end of the roller or rollers, of suliicient height to keep them movingin a direct line on the grated platform F, under which I construct `achute or conductor, at a suiicient inclination to allow the broken coalto run by gravity into the revolving screen H, constructed in any of theknown forms by which I cleanse the coal from dust and separate thevarious sizes passing each size separately by means of the chutes I I II I, into rail road cars or any other mode `of conveyance. I alsoconstruct a carrier or elevator K, with endless iat iron chains, coveredwith strips of flue or sheet iron, passing around the drums L L. Thespace between the drums LL, I support by small rollers, the journals ofwhich, I insert in the sides of the box M, through which the carriermoves and conveys the coal from the chute N, where it is deposited bymine cars or other means, and empties it into the hopper O, and by it isconveyed to the grated platform F. I produce from the same moving power,`and by` any of the `known methods, a rotary mot-ion to the revolvingscreen H, and the carrier K, which rotary motion acts in concert withthe reciprocating motion of the coal breaker, A.

lVhat I claim as my invention in the above described l machine is- Thecombination of t-he vibrating rollers with the iron bars or rail orperforated bed through which the coals are forced by the rollers for thepurpose of breaking anthracite or bituminous coal, as above described,also the combination of the elevator or carrier with the breakingmachine constructed las herein described by which means the co-al can beregularly delivered into the machine;

and the combination of,` the breaking ma` chine constructed as describedwith `the revolving screen and chutes, by means of whlchthe coal 1scleansed from dust; the

various sizes separated, and loaded into any mode of conveyance. g

HOPKIN THOMAS.`

Witnesses: i HENRY VANNAN A. W, Pierrei

